Introducing the Timberwolf 250 4x4 (YFA1E), a robust utility All-Terrain Vehicle (ATV) produced from 1994 to 2000. This model is recognized for its reliable 4x4 system, manageable size and weight, and the proven durability characteristic of engineering. Designed for a variety of tasks, the Timberwolf 250 4x4 offers a balanced blend of performance and value, making it a capable companion for work or recreation. Its 4-stroke, SOHC, air-cooled engine, with approximately 230 cc displacement, provides ample power for its intended applications, complemented by a 5-speed manual transmission with an automatic clutch. This comprehensive service manual provides essential information for the maintenance, repair, and restoration of your Timberwolf 250 4x4. Covering the production years 1994 through 2000, this 341-page document details all major systems, including the engine, fuel system, clutch, transmission, 4WD system, brakes, and electrical components. It offers detailed step-by-step instructions, full wiring diagrams, component breakdowns, and exploded views, facilitating accurate diagnosis and repair. Whether you are a dedicated owner performing routine maintenance or a professional technician undertaking complex repairs, this manual serves as an indispensable resource for keeping your Timberwolf 250 4x4 in optimal condition. 🏷️ Basic Information Identification Make: Yamaha Model: Timberwolf 250 4x4 Codes Model Variant: YFA1E 👋 Introduction Market Position Category: Utility ATV (All-Terrain Vehicle) Competitive Analysis Key Competitors: Honda FourTrax 300 4x4, Suzuki QuadRunner 250 4x4, Kawasaki Bayou 300 4x4 Key Features Vehicle Strengths: Reliable 4x4 system, manageable size and weight, proven Yamaha durability Manual Value Proposition: Comprehensive factory-level repair and maintenance data for DIY owners and professional technicians. 📋 Manual Details Coverage Areas Applicable Years: 1994, 1995, 1996, 1997, 1998, 1999, 2000 Page Count Page Count: 341 Manual Type Manual Type: Service Factory Manual / Repair Manual / Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Systems: General Information, Maintenance, Engine, Fuel System (Carburetion), Body & Steering, Clutching & Belt System, Final Drive & 4WD System, Transmission, Brakes, Electrical System, Wiring Diagrams, Troubleshooting Procedures Included Procedures: Repair, Service, Restoration, Rebuild, Diagnosis, Preventative Maintenance, Troubleshooting Technical Depth Depth: Detailed step-by-step instructions, full wiring diagrams, detailed illustrations, component breakdowns, exploded views 📊 Manual Specifications File Format File Format: PDF (potentially zipped) Print Quality Printability: Printable on any computer and printer Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Digital Features Searchability: Likely searchable PDF content Zoomability: Zoomable illustrations ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, Air-cooled Displacement: 230 cc (approx.) Bore X Stroke: 66.0 mm x 65.0 mm (typical for this era Yamaha 230cc) Performance Horsepower: Estimated 16-18 HP (at crankshaft, dependent on tune and testing conditions) Torque: Estimated 13-15 lb-ft (at crankshaft) Fuel System Fuel Delivery: Carburetor (likely Mikuni VM Series) Carburetor Size: Approx. 33 mm (typical for this class) Ignition Ignition System: CDI (Capacitor Discharge Ignition) Lubrication Oil Type: Yamalube 4 (or equivalent SAE 10W-30 or 10W-40 API SG or higher) 🔧 Transmission Standard Transmission Type: 5-speed manual with automatic clutch Optional Reverse: Yes Features Drive System: Shaft Drive, 2WD/4WD selectable Final Drive Fluid: Yamaha's recommended hypoid gear oil (API GL-4 or GL-5, SAE 80W-90) 📐 Dimensions Exterior Length: Approx. 73.8 inches (1875 mm) Width: Approx. 40.9 inches (1040 mm) Height: Approx. 41.1 inches (1045 mm) Weights Dry Weight: Approx. 450 lbs (204 kg) Ground Clearance: Approx. 6.5 inches (165 mm) Cargo Front Rack Capacity: Approx. 45 kg (99 lbs) Rear Rack Capacity: Approx. 70 kg (154 lbs) 🛡️ Safety Features Ratings Rollover Protection: Not applicable (ATV design) Active Features Braking System: Front: Dual hydraulic disc; Rear: Single hydraulic disc Passive Features Lighting: Dual 30W halogen headlights, 8W/23W taillight/stoplight 💡 Technology Features Infotainment Infotainment System: N/A (Basic utility ATV) Driver Assistance Driver Assistance Features: N/A (Basic utility ATV) Connectivity Connectivity Options: N/A (Basic utility ATV) 🔧 Maintenance Service Intervals Engine Oil Change: Every 1000 km (600 miles) or 6 months, whichever comes first. Initial break-in oil change at 100 km (60 miles). Air Filter Cleaning: Every 2000 km (1200 miles) or 12 months, more frequently in dusty conditions. Spark Plug Replacement: Every 5000 km (3000 miles) or 24 months. Fluid Specifications Engine Oil Capacity: Approx. 1.7 L (1.8 US qt) with filter change. Coolant Type: N/A (Air-cooled engine) Brake Fluid Type: DOT 3 or DOT 4 Hydraulic Brake Fluid Known Issues Common Wear Items: Brake pads, tires, battery, drive belts, spark plugs, carburetor jets (clogging). Potential Failures: Carburetor performance degradation due to age and fuel deposits, electrical connections corrosion, suspension wear. Parts Reference Spark Plug Part Number: NGK CR6HSA (common but verify in manual) 📚 Vehicle History Brand Heritage Manufacturer Focus: Yamaha Motor Company is renowned for its motorcycles, marine products, and powersports vehicles, emphasizing innovation and reliability. Model Evolution Timberwolf Lineage: The Timberwolf was Yamaha's entry into the mid-size utility ATV market, known for its balanced performance and value. Production...